Sony HCD-FL3 Service Manual Download Page 21

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HCD-FL3

SECTION 5

TEST MODE

[COLD RESET]

• The cold reset clears all data including preset data stored in the

RAM to initial conditions. Execute this mode when returning
the set to the customer.

Procedure:
1. Press three buttons

[ ]

[DISPLAY]

, and

[GROOVE]

simulta-

neously.

2. The fluorescent indicator tube becomes blank instantaneously,

and the set is reset.

[TUNER STEP CHANGE]

• A step of AM channels can be changed over between 9 kHz and

10 kHz.

Procedure:
1. Press the

[I/ ]

button to turn the power on.

2. Select the function “TUNER”, and press

[TUNER/BAND]

but-

ton to select the BAND “AM”.

3. Press the

[I/ ]

button to turn the set OFF.

4. Press

+ and

[I/ ]

buttons simultaneously, and the display

of fluorescent indicator tube changes to “AM 9 k STEP” or “AM
10 k STEP”, and thus the channel step is changed over.

[FUNCTION CHANGE MODE]

• Select either VIDEO or MD of the external function input.
Procedure:
1. Press the

[I/ ]

button to turn the power on.

2. Hold down

[MD $VIDEO%]

button then press

[I/ ]

button, and

release

[I/ ]

button first in order not in switch off the set imme-

diately.
The another function of the previous function is selected, the
input level is also changed and displayed “MD” or “VIDEO”.

[GC TEST MODE]

• This mode is used to check the software version, FL tube, LED,

keyboard and VACS.

Procedure:
1. Press three buttons

[ ]

[DISPLAY]

, and

[EFFECT]

simulta-

neously.

2. LEDs and fluorescent indicator tube are all turned on.
3. When you want to enter the software version display mode,

press

[GROOVE]

. The model number and destination are dis-

played.

4. Each time

[GROOVE]

is pressed, the display changes stating

from MC version, GC version, DP version, CD version,
CDDM, CDMA, CDMB, BDA, BDB, ST version, TA version,
TM version, TC version, in this order, and returns to the model
number and destination display.

5. When

[CD SYNC HI-DUB]

is pressed while the version num-

bers are being displayed except model number and desti-
nation, year, month and day of the software creation ap-
pear. When

[CD SYNC HI-DUB]

is pressed again, the display

returns to the software version display. When

[GROOVE]

pressed while year, month and day of the software creation
are being displayed, the year, month and day of creation of the
software versions are displayed in the same order of version
display.

6. Press

[EFFECT]

button, and the key check mode is activated.

7. In the key check mode, the fluorescent indicator tube displays

“K22 V0 C T”. Each time a button is pressed, “K” value de-
creases.
However, once a button is pressed, it is no longer taken into
account.
“V” value increases like 1, 2, 3...if rotating

[VOLUME]

knob

in the clockwise, or it decreases like 0, 9, 8...if rotating in the
counterclockwise.
Each time the “CD DOOR LOCK DETECT” or “CD DOOR
OPEN/CLOSE DETECT” switch is turned on, “C” value in-
creases.

Each time the “CASSETTE LID OPEN/CLOSE DETECT”
switch is pressed, “T” value increases.

8. Also when

[CD SYNC HI-DUB]

is pressed after lighting of all

LEDs and fluorecsent indicator tube, value of VACS appears.

9. To exit from this mode, press three buttons in the same man-

ner as step 1, or disconnect the power cord.

[MC TEST MODE]

• This mode is used to check operations of the respective sections

of Amplifier, Tuner, and Tape.

1. Entering the MC Test Mode

Procedure:
1. Press the